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srdatsun
The Legendary AY12 Engine
#1
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Ever so rare to even find pictures of these race developed AY12 engines

BUT

Heres a video and mechanical drawings of the AY12 also the AZ12.

http://www.youtube.com/watch?feature=player_embedded&v=A6Hue-1gCKk

http://imageshack.us/g/191/ay1q.jpg/

enjoy

Posted on: 2011/6/15 17:46
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RyanFurY
Re: The Legendary AY12 Engine
#2
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anyone seen the ay12 youtbe vid? http://www.youtube.com/watch?v=A6Hue-1gCKk

Posted on: 2011/6/15 18:06
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ddgonzal
Re: The Legendary AY12 Engine
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Those are both the same video. I wonder if it runs?

The most AY12 information is right here on Datsun1200.com. It was a FWD motor.

Attach file:


jpg  AY12_B110.jpg (39.82 KB)
174_4df90a9732fc1.jpg 472X345 px

Posted on: 2011/6/15 20:40
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bige
Re: The Legendary AY12 Engine
#4
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i like that it sounds like its running,doesn't appear to have a bottom radiator hose on it.coil mounted on inner guard no lead.

Posted on: 2011/6/15 23:25
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Dundee1000
Re: The Legendary AY12 Engine
#5
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and in that pic it's RWD...

Posted on: 2011/6/16 1:30
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LittleFireyOne
Re: The Legendary AY12 Engine
#6
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Sometimes those Datsun engineers got it wrong, fwd motor sheesh!

Posted on: 2011/6/16 14:18
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afican_kid86
Re: The Legendary AY12 Engine
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i found this the other day..

http://beeoneoneoh.com/2010/04/17/ay12/

Posted on: 2011/6/16 17:20
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Rallytwit
Re: The Legendary AY12 Engine
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I would love to see actual pics of the combustion chambers, to me it looks like the AY head put the spark plugs where the intake ports were and the AY valve guide is centered where the plugs are in a A series head..............perhaps they just swapped.

Tom

Posted on: 2011/6/17 1:38
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D
Re: The Legendary AY12 Engine
#9
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From under the Firmament LOL no twiglight effect BS
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The FWD thing could have been to promote the sales of the Cherry and
maybe a healthy competing exercise for another team within Nissan to
add chances of success within its small cars lineup.
In the AY and most hemi NAs the piston is too heavy for NA due to the
poor valve angles whereas the e15 has much better angled valves.
However the e15 port angles are low mainly for low rpm torque whereas
the AY seems to be a compromise for performance and clearance issues.
Jags v12s had the best high port inlets on the May HE heads.

Posted on: 2011/6/17 1:53

Edited by D on 2011/6/17 2:14:42
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matbighat
Re: The Legendary AY12 Engine
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sensational enough find to make me come out of hiding (first post in years)

but yeah, would LOVE to hear that running and screaming along suzuka

Posted on: 2011/6/17 4:10
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